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通过在线电荷合装置 (CCD) 阵列上的多个数字锁定进行内置光学光谱学
Hugo Fonsêca1,2, Diego Rativa1,2, Ricardo Lima2
1Department of Computer Engineering, University of Pernambuco, Recife 50720-001, Brazil.
Sensors (Basel, Switzerland)
|August 26, 2023
概括
这项研究引入了CCD光谱仪的数字锁定处理,即使有可变的照明,也可以进行准确的光学测量. 该技术有效地减轻外部干扰,在不受控制的环境中进行可靠的光谱学.
科学领域:
- 光学和光子学 在光学和光子学.
- 频谱学是一种光谱学.
- 数字信号处理 数字信号处理
背景情况:
- 精确的光学属性测量对于工业至关重要,但受到外部光的波动挑战.
- 不受控制的照明条件阻碍了标准光谱技术的可靠性.
研究的目的:
- 为CCD光谱仪开发一种新的数字锁定处理技术.
- 在不受控制和波动的照明条件下实现可靠的光学光谱学.
主要方法:
- 数字锁定处理同时应用于电荷合装置 (CCD) 谱仪的每个像素.
- 通过同时处理像素级处理来缓解外部光学干扰.
主要成果:
- 在具有显著外部干扰的室外照明条件下成功恢复黄色LED光谱 (-70.45dB信号与噪声比).
- 在户外环境中对金纳米颗粒进行光谱分析的应用性得到证明.
结论:
- 拟议的数字锁定处理技术提高了CCD光谱仪的稳定性.
- 这种方法对于在具有挑战性的,不受控制的照明环境中的光学测量是有效的,扩大了光谱学应用.
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